# CloudSponge Reviews **Vendor:** CloudSponge **Category:** [Other Lead Generation Software](https://www.g2.com/categories/other-lead-generation) **Average Rating:** 4.8/5.0 **Total Reviews:** 18 ## About CloudSponge The CloudSponge Contact Picker improves your word-of-mouth sharing feature by making it easy for your users to share their contacts. We include all the major address books for your users to choose from. Most customers use CloudSponge to allow their users to share their contacts without having to leave their websites. We’ve come a long way from the copy and paste game. We know that once a customer has to leave a site to gather that information, they could leave forever. With the Contact Picker, users have straight access to their entire address books. Sharing contacts becomes a simple click. With straight access to their address books, users are going to share more. That means more site visitors, more referrals, more sales, better open rates, and lower customer acquisition costs. ## CloudSponge Reviews ### 1. Most Stable Address Book Importer **Rating:** 4.5/5.0 stars **Reviewed by:** Sachin U. | Chief Marketing Officer, Computer Games, Mid-Market (51-1000 emp.) **Reviewed Date:** May 15, 2018 **What do you like best about CloudSponge?** Stability over several years of usage. We have had no issues at all. Reports are easy to use. And it just works. Also, the ease of implementation. It was super easy to get started. And the payment terms were very friendly. As a startup it meant a lot. **What do you dislike about CloudSponge?** It's not 'dislike', however, some new features or gamification that can be added out of the box. **Recommendations to others considering CloudSponge:** Implement and forget. It works. **What problems is CloudSponge solving and how is that benefiting you?** Friend referrals drive a big portion of our business and we keep testing new ways of offering our customers to tell their winning stories on RummyCircle. All these great stories help us spread the word and get more and more customers. It was worked consistently for us for over 10 years now. I am delighted and really glad that I implemented coudsponge in our site and native app. ### 2. Works great **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Mid-Market (51-1000 emp.) **Reviewed Date:** July 29, 2020 **What do you like best about CloudSponge?** Seamlessly integrates, works well, great for lead gen and address books. **What do you dislike about CloudSponge?** haven't used it too much yet to find a dislike. **What problems is CloudSponge solving and how is that benefiting you?** Dev time for lead gen, this is an easy capture & easy way to access lots of data. ### 3. Great software for adding that viral component to build your user base! **Rating:** 5.0/5.0 stars **Reviewed by:** Sean R. | CEO and Founder, Small-Business (50 or fewer emp.) **Reviewed Date:** May 01, 2019 **What do you like best about CloudSponge?** Cloudsponge is really a breeze to integrate and get up and running within a very short period of time. Testing was easy and took less than an hour and so was moving to production. Everything worked right out of the box with no hiccups. It looks very slick and is also responsive just like it says. It was also very easy to customize and work in different ways. For example you can give direct buttons for different mailboxes like yahoo, msn etc, versus giving a single button by which a user can choose from a whole bunch of mailboxes. **What do you dislike about CloudSponge?** Having to pay for this since we are are so spoilt with free software.. However, the CEO of Cloudsponge is very considerate with young startups which is a great thing. Nothing to really to dislike. **Recommendations to others considering CloudSponge:** Check out this product. You can integrate it without making much changes to your code at all so you should be able to give it a good run before making any big decisions about how long you want to use it and and how much you may want to spend on it. **What problems is CloudSponge solving and how is that benefiting you?** Adding a viral component to build your user base. Users are lazy enough and to enter a list of their friends' emails is too much to ask from them. Software that imports your address book from different mail box providers like yahoo is known to greatly enhance your conversion rate. ### 4. CloudSponge Email Address Book Integration **Rating:** 5.0/5.0 stars **Reviewed by:** Sujay J. | Founder, Small-Business (50 or fewer emp.) **Reviewed Date:** December 20, 2018 **What do you like best about CloudSponge?** CloudSponge provide an excellent address book tool/widget that can be used to extract contacts from people using your website. 10 years ago, when I had the same problem, my company had to write adapters for each email provider and it was not the core problem that we were solving. Today, there is this great service (backed by an equally great group of human beings) and this means we can focus more directly on the problem at hand. There have been a couple of hurdles when looking to obtain permissions from email providers like Outlook and GMail but luckily the guys at CloudSponge have seen this all before and were responsive to our requests for guidance. **What do you dislike about CloudSponge?** Nothing. There were no points in our journey where we hit anything to dislike. **Recommendations to others considering CloudSponge:** Solved and business problem and is backed by a group of people who really care about your success using their product. **What problems is CloudSponge solving and how is that benefiting you?** Our business, LeavingCard.com, allows the site visitor to create collaborative eCards. The user needs access to their contacts in order to loop in both the people collaborating on the card, and also the end recipient. CloudSponge's tool set helps us here. ### 5. Couldn’t be easier to harness the power of your users email addresses **Rating:** 5.0/5.0 stars **Reviewed by:** Joseph U. | Small-Business (50 or fewer emp.) **Reviewed Date:** May 29, 2018 **What do you like best about CloudSponge?** Provides data in a consistent JSON format regardless of the originating data source. **What do you dislike about CloudSponge?** Not much to dislike. Its about as easy as it gets when connecting to multiple address book providers such as GMail, Officer 365 etc.... **Recommendations to others considering CloudSponge:** If you know what a Google API key is then you have all the skills you need to easily allow your users to share contact information from their services such as GMail, Office 365 etc... **What problems is CloudSponge solving and how is that benefiting you?** CloudSponge makes it very straightforward to allow my users to connect to their own personal address books and then have that data passed along to my server in an easy to read JSON format. It would take me forever to try and code the UI and integrations with all of these other systems which I can do in under an hour with CloudSponge. ### 6. Cornerstone of a Referral Marketing Campaign **Rating:** 5.0/5.0 stars **Reviewed by:** Brian M. | Founder/CEO: MineLife.org, Mining & Metals, Small-Business (50 or fewer emp.) **Reviewed Date:** August 30, 2018 **What do you like best about CloudSponge?** Jay and Graeme are fantastic guys to work with. They helped us quickly integrate CloudSponge into our project and their website provides developers with clear-cut guidance on how to build a world-class referral marketing program: https://www.cloudsponge.com/solutions/referral-programs/ Looking forward to CloudSponge helping us exponentially grow our user base. **What do you dislike about CloudSponge?** The Con is related to Google's Gmail validation requirements and this is where Jay & Graeme exceeded our expectations - supporting us along the way. **What problems is CloudSponge solving and how is that benefiting you?** Helping our customers more easily access emails from their address books. ### 7. Great tool. Extraordinary support. **Rating:** 5.0/5.0 stars **Reviewed by:** Jacob M. | Lead Software Developer, Computer Software, Small-Business (50 or fewer emp.) **Reviewed Date:** October 04, 2017 **What do you like best about CloudSponge?** The integration was simple, the support is extraordinary, and our time to market was a small fraction of what it would have been were we successful building a similar tool ourselves. CloudSponge even modified their product to support a unique requirement we had, so we didn’t have to make the customization ourselves. We were certainly impressed with that level of support. **What do you dislike about CloudSponge?** No complaints, the tool did exactly what we wanted. It even gave us more options than we knew what to do with. **What problems is CloudSponge solving and how is that benefiting you?** PledgeStar wanted to make it easier for its users to send pledge requests by selecting family and friends from their online address books instead of entering them manually. We initially started to code it ourselves, but then discovered CloudSponge and immediately realized we’d be fools to create what they had already perfected. Developing, testing and maintaining that code would surely increase our time to market and introduce unnecessary risk. Our initial goal was to make it easier for our users to send pledge requests to their family and friends. What we didn’t anticipate was that users who used our online address book feature received 25% more donations than those who didn’t. ### 8. Cloudsponge thumbs up **Rating:** 5.0/5.0 stars **Reviewed by:** Desi M. | Small-Business (50 or fewer emp.) **Reviewed Date:** January 02, 2018 **What do you like best about CloudSponge?** I really enjoyed working with Jay and his team. They were super responsive when we had questions or needed some additional functionality. They deployed so we could. :) We needed to be able to have an easier way for people to invite others to our system since we are a closed invitation only platform and Cloudsponge did the trick. **What do you dislike about CloudSponge?** We ended up rolling a lot of our own UI and interactions because what we needed didn't fit into the normal use cases. However, the team was very responsive and helpful in helping us achieve our goals. **What problems is CloudSponge solving and how is that benefiting you?** Our business is an invitation only system and therefore it is pretty important that people can easily invite others. Cloudsponge is helping us help our users do just that. We have only just recently released the functionality but we are already seeing an increase in invitations sent. ### 9. Easy drop in to solve a simple (but very difficult in practice) problem **Rating:** 5.0/5.0 stars **Reviewed by:** Wesley H. | Technical Research Assistant II, Defense & Space, Small-Business (50 or fewer emp.) **Reviewed Date:** September 06, 2017 **What do you like best about CloudSponge?** My research on how to import email addresses from users' contacts lists and quickly became a search for the best 3rd party solution for it. It would be ridiculous to implement oauth for a couple dozen email providers so you can hook into your user's contact lists. So after an afternoon of research and tinkering around I decided on and set up CloudSponge. Their setup docs are pretty straight forward so it was easy to get working in my Rails/React app. Using the finished product after an afternoon of researching/tinkering was definitely the best part. **What do you dislike about CloudSponge?** The pricing is a little steep. It's high enough where I considered implementing my own solution just for Gmail. However it is nice to know that many many email clients are represented so I haven't bothered. **What problems is CloudSponge solving and how is that benefiting you?** The Hustle has a page where subscribers can invite their friends to subscribe, and they get referral credit. The CloudSponge plugin allows users to select emails from their email client's contact list so they don't have to type them in. We're emailing approximately 200 invites a day and about 6 people use the CloudSponge plugin. But when they do use the plugin they tend to email more people. One person invited over 6000 people from his contacts. ### 10. Cloudsponge is an excellent tool and the best contact importer on the market **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Internet | Small-Business (50 or fewer emp.) **Reviewed Date:** March 30, 2018 **What do you like best about CloudSponge?** Customizable with fast import, an easy integration. Save us huge amount of development time and headaches. **What do you dislike about CloudSponge?** From my experience nothing I can point to **What problems is CloudSponge solving and how is that benefiting you?** Allow our users to imports their contact list and spread the word about our causes ### 11. Great product and support team. **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Internet | Small-Business (50 or fewer emp.) **Reviewed Date:** March 21, 2018 **What do you like best about CloudSponge?** I like easy integration of the product and the quick response from the support team when we have an issue. **What do you dislike about CloudSponge?** Nothing we noticed so far to dislike and report **What problems is CloudSponge solving and how is that benefiting you?** Importing the contacts from the address books of google , yahoo, outlook etc. ### 12. amazing software **Rating:** 5.0/5.0 stars **Reviewed by:** Arnon S. | Member, Small-Business (50 or fewer emp.) **Reviewed Date:** September 27, 2017 **What do you like best about CloudSponge?** The ease of use for the end user. The fast import. The easy integration. The Frequent upgrades. **What do you dislike about CloudSponge?** Nothing i can think of in particular. Maybe the dealing with LinkedIn. import which is anyway problematic so I wouldn't blame CS **Recommendations to others considering CloudSponge:** The staff is awesome !! **What problems is CloudSponge solving and how is that benefiting you?** importing contacts for our end users is critical to the success of fundraising campaigns. Since email is the most effective tool for friends raising, CS is instrumental to the success of personal fundraising pages. ### 13. Best contact importer **Rating:** 5.0/5.0 stars **Reviewed by:** Promothash B. | Founder and Chief Technology Officer, Computer Software, Small-Business (50 or fewer emp.) **Reviewed Date:** October 16, 2017 **What do you like best about CloudSponge?** We have exploring contact importer for our product https://democ.io and we want an seamless integration with minimum efforts. We have tested various products and finally came across Cloudsponge which we feel is the best product in the World. The ease of integration and excellent support. We love Cloudsponge. **What do you dislike about CloudSponge?** I hope to see much more Email service providers integration. **What problems is CloudSponge solving and how is that benefiting you?** It helps people to send invites to their friends or Colleagues to join the Democ groups. It's ease of integration and excellent support. It supports many Email service providers and the user interface is mobile friendly. ### 14. Easy, clean, fast **Rating:** 5.0/5.0 stars **Reviewed by:** Kyle U. | Software Engineer, Internet, Small-Business (50 or fewer emp.) **Reviewed Date:** October 27, 2017 **What do you like best about CloudSponge?** Widget looks clean and is intuitive. And Contact searching is very fast! **What do you dislike about CloudSponge?** A little bit cumbersome to setup a fresh install, but still worth it. **What problems is CloudSponge solving and how is that benefiting you?** Saved us lots of time and potential headache with setting up and configuring each social API integration ourselves. ### 15. Great product for inviting contacts **Rating:** 3.5/5.0 stars **Reviewed by:** Kevin W. | COO & Co-founder, E-Learning, Mid-Market (51-1000 emp.) **Reviewed Date:** January 24, 2018 **What do you like best about CloudSponge?** integration for gmail and outlook easy to use design, layout **What do you dislike about CloudSponge?** unknown maximum limits for different types of invitations **What problems is CloudSponge solving and how is that benefiting you?** sending out user referrals. benefits realized including higher number of invites being sent out ### 16. Easy setup and many options for customization **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Computer Software | Small-Business (50 or fewer emp.) **Reviewed Date:** October 24, 2017 **What do you like best about CloudSponge?** Using CloudSponge means I don't have to learn and integrate with different APIs, CSV formats and authentication schemes. **What do you dislike about CloudSponge?** Setting up OAuth with some of the integration parties can be a pain, but that's more about OAuth than CloudSponge, **Recommendations to others considering CloudSponge:** Spend a few days getting to know the customization options. **What problems is CloudSponge solving and how is that benefiting you?** We're allowing our users to import their Gmail, Outlook and LinkedIn contacts into our CRM. ### 17. Cloudsponge has worked well for our users for years **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.) **Reviewed Date:** May 17, 2017 **What do you like best about CloudSponge?** We first started using Cloudsponge several years ago. Since the initial setup we haven't had any issues with it and it continues to run month after month. It saved us lots of development time compared to writing our own code to import from Google, Yahoo, AOL, etc. As our business has grown, so has our customer's usage of Cloudsponge to load their contacts into our site. We're now averaging over 1,000 address book imports a month and we almost never get questions about how to use the widget. We recently upgraded to the new Cloudsponge widget and the timimg was great. Their new widget UI has a mobile first design and works perfectly on our new mobile friendly site. **What do you dislike about CloudSponge?** The initial setup was a little tricky when linking Cloudsponge and our API keys with the 3rd party sites. That's been a while ago, so it may be an easier process now. **What problems is CloudSponge solving and how is that benefiting you?** Cloudsponge allows our customers the ability to imports their friends and family onto their guest list directly from many of the most common webmail and email clients. This is easier for our users than having to build their list manually in an Excel or CSV file. ### 18. Cloud Sponge has been extremely effective **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Financial Services | Small-Business (50 or fewer emp.) **Reviewed Date:** August 24, 2017 **What do you like best about CloudSponge?** The customer service team and the tech team over at CS have been great in helping us implement this software. Very responsive **What do you dislike about CloudSponge?** Google is relatively strict with what you can do with emails and therefore there is a time delay between purchasing **What problems is CloudSponge solving and how is that benefiting you?** CloudSponge is allowing our users to upload emails from their address books into a preset email form so they can share our product - [View CloudSponge pricing details and edition comparison](https://www.g2.com/products/cloudsponge/reviews?section=pricing&secure%5Bexpires_at%5D=2026-05-13+11%3A04%3A15+-0500&secure%5Bsession_id%5D=ed62f1c4-bd12-41fa-8ef2-95ea6b023114&secure%5Btoken%5D=4c6a9fafcd0a0b870f92f75896ea9a66d5dff5e85280143f7eda842af1a97569&format=llm_user) ## CloudSponge Features **Lead Generation** - Lead Builder - CRM Integration - Marketing Automation Integration - Social Media Integration - Data Import & Export Tools ## Top CloudSponge Alternatives - [PersistIQ](https://www.g2.com/products/persistiq/reviews) - 4.5/5.0 (316 reviews) - [AnyBiz.io](https://www.g2.com/products/anybiz-io/reviews) - 4.8/5.0 (338 reviews) - [A-Leads](https://www.g2.com/products/a-leads-a-leads/reviews) - 4.9/5.0 (271 reviews)